space heater spaceful • space helmet · · · Info · Definitions · Characters · · space heater · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) heater consisting of a self-contained (usually portable) unit to warm a room. Synonyms: space heater. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074